𝙎𝘼𝙔 𝙔𝙀𝙎 𝙄𝙁 𝙔𝙊𝙐 𝙇𝙊𝙑𝙀 Crochet

Surcharge?
How would you tip or not when it comes to this surcharge? Would you deduct from the tip amount or the subtotal then tip based off that?